Supplies you can count on, people you can trust.

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Our Warehouse

Suite #266, 4025 Dorchester Rd.

Niagara Falls, ON

L2E 6N1




I couldn't believe how knowledgable and how quick the customer service was. GMS caters to individual needs, I will be a long time customer!

Fred F, Squamish

Frank from GMS was very knowledgable and walked me through how to use each product I inquired about, and even sent me some great links after our conversation to make sure I was comfortable with my purchase. I highly recommend GMS to all growers alike! Five Stars!!!

Louis J, P.E.I

Great customer service, outstanding products...these guys have their sh**t together!!!

Mark D, Oregon